Target-signal.



E. P, BLISS,

TARGET SIGNAL.

APPLIOATION FILED JULY 15, 1908.

Patented June 15,1909.

INVENTBR.

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Teaser-stealer...

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Specification of Letters Patent.

Patented June 15, 1909.

- Application ens ma is, 1909. Serial No. 44:3,ec2.

- zen of the United States, residing at Schenectady, York, inventedcertain new and useful Improvements in Target-Signals, of which thefollowing is a s ecihcation.

My invention re ates to signals of the disk or target type, in which atarget in the form or a thin disk is mounted on a central axis, and isrotated through ninety degrees to display or conceal it.

The object of my invention is to provide what may be termed athree-position sig nal of this type. For giving three distinctiveindications, it has ordinarily been the practice heretofore to employ apair of separate target signals displayed in different positions. tionsare obtained at the same point, with a simple and compact arrangement ofap aratus. l accomplish this result by provi ing a pair of unliketargets pivotal'ly mounted on their central axes, with their axes inalinemerit, and means for rocking each target on its axis through ninetydegrees independentlyof the other; at least, one of the targets ance,bet

being cut away along its axis,'and overhanging the other, so that eithertarget may be displayed in substantially the same position.

My invention will best he understood by reference to the accompanyingdrawings, in-

which Figure 1 shows both front and sideelevations of a tar et signalarranged ill flCCOI'Llance-with my invention, .with both targetsconcealed; Rig. 2 shows similar views with one target displayed; Fig. 3shows similar views with the other target displayed; and Fig. l shows aperspective view of the two targets, separated from each other, so asmore clearly to show'their construction.

In the drawings A and A represent two disks or targets pivoted on theircentral axes, with their axes in alinement, and each target cut awayalong its axis, and overhanging the axis of the other, as is mostclearly shown in Fig. .The targets are unlike in appear- '3.- made ofdifferent shapes or different colors, or preferably both. E or instance,the target A may he circular, as shown, and colored red for the dangerindication, while target A may he diamond-shape and colored green, togive a caution indication. Each target is movable on'its axis throughninety county of Schenectady, State of New By my invention all threeindica- I target.

short cranks a and a, respectively, connected to the cores of a pair 0operating magnets B B. i In Figs. 1, 2 and 3, l have indicated by adotted line C a window, behind which the targets are displayed.

With both magnets B and B energized, both disks are concealed, as shownin Fig. 1. In this position each disk lies in a horizontal plane, ormore properly speaking, in two iorizontal planes, for each isk has itsparts on op osite sides of its axis offset in different para el planes,so that the relative positions of the two targets are reversed on oposite sides oftheir common axis. This 0 setting of the parts of eachtarget, together with the cutting away of each target along its axiswhere it overhangs the other, permits the movement. of either targetthrough, ninety 75 degrees withoutinterference with the other If themagnet B is deenergized, its core falls, rocking the target A throughninety degrees, as shown in Fig. 2, and consequently displaying itbehind the window C. If magnet B isencrgized, and magnet B isdeenergized; then target Al is concealed, while target A is displayed,as shown in Fig. 3. 7

It will be understood that, in ordento illustrate my invention clearly,I have shown it somewhat diagrammatically, and I do not desire to limitmyself to the particular construction and arrangement of parts hereshown, but aim in the appended claims to coverall modificationswhich'are'within the see c of my invention.

hat I claim as new and desire to secure .by Letters Patent of the UnitedStates, is:

1. In a signal, a. pair of unlike targets pivotally mounted on theircentral axes and with their axes in alinenient, and means for rockingeach target on its axis through ninety degrees independently of theother, at least one olsaid targets being cut away alpng itsaxisand'ovcrhanging the otherso that either target may be displayed insubstantially the same osition.

2.- n a signal, a pair of unlike targets pivotally mounted on theircentral axes and with their axes in alinement, means forrocking-eachtarget on its axis through ninety degrees independently ofthe other, at least one of said targets being cut away along its axisand overhangingthe other so that either target may be displayed insubstantially the same position, and a air of electromagnets foractuating said roc .ing means.

3. In a signal, a pair of unlike targets pivotally mounted on theircentral axes and with-their axes in alinement and each over: hanging theaxis of the other, and means for rocking each target on its axis throughninety degrees independently of the other.

4. In a signal, a pair of unlike targets pivotally mounted on theircentral axes and with their axes in alinement and each overhanging theaxis of the other, and a pair of electroma nets connected to saidtargets respective y and adapted to rock said targets on their axesthrou h ninety degrees, each target being movable independently of theother. I

5. In a signal, a pair of unlike targets pivotally mounted on theircentral axes and with their axes in allnement and each overhanginfi theaxis of the other, and at least one target aving its parts on oppositesides of its axis offset in different parallel planes, so that therelative positions of thetwo targets are reversed on opposite sides oftheir com- H1011 aXlS. I

6. In a signal, a pair of unlike targets pivotally mounted on theircentral axes and with their axes in alinement, means for rocking eachtarget on its axis through ninety degrees independently of the other, atleast one of said targets being cut away along its axis and overhangingthe other so that either target may be displayed in substantially thesame position, am at least one target having its Jarts on opposite sidesof its axis offset in di 'erent paral el plane's, so that the relativepositions of the two targets are reversed on

